Water rat is a common name for a number of not closely related types of
semiaquatic rodents of superfamily
Muroidea, including: •
Ucayali water rat or amphibious rat (
Amphinectomys savamis), a cricetid found in Peru •
European water vole (
Arvicola amphibius, formerly
A. terrestris), a cricetid in north and central Europe and Russia •
Baiyankamys, a murid genus of two species from New Guinea •
African wading rat (
Colomys goslingi), also called African water rat •
Earless water rat (
Crossomys moncktoni), a murid of eastern New Guinea •
Hydromys, a murid genus of four species of Australia and New Guinea •
Nectomys, a cricetid genus of five species of South America •
Florida water rat or round-tailed muskrat (
Neofiber alleni), a cricetid in the United States •
Sulawesi water rat (
Waiomys mamasae), a murid of Sulawesi •
False water rat (
Xeromys myoides), a murid of northern Australia and southern New Guinea ==Other==